Split date ranges into corresponding weeks

Question

I have date ranges called from and to.I want to convert it to weeks. Suppose from date is 1-10-2014 and to date is 31-10-2014

Then result is:

1st week : 01-10-2014 to 04-10-2014 2nd : 05-102014 to 11-10-2014 3rd : 12-10-2014 to 18-10-2014 4th : 19-10-2014 to 25-10-2014 5th : 26-10-2014 to 31-10-2014

In php.I try several code but that didn't given the absolute result only give 01 to 7 , 8 to 14 etc. Pls help.

I already try answers from

Get the date of one week from today with PHP in stack overflow


date("Y-m-d",strtotime("+1 week"));

Answer 1

This snippet uses Sunday as the first day of the week:

    $start = new DateTime('2014-10-01');
    $end = new DateTime('2014-10-31 23:59');
    $interval = new DateInterval('P1D');
    $dateRange = new DatePeriod($start, $interval, $end);

    $weekNumber = 1;
    $weeks = array();
    foreach ($dateRange as $date) {
        $weeks[$weekNumber][] = $date->format('Y-m-d');
        if ($date->format('w') == 6) {
            $weekNumber++;
        }
    }

Each week will have all the days in it.

If you just want the first and last days of each week then you can just use array_shift and array_pop to get them. For example, for the first week you can use:

    $wk1Start = array_shift($weeks[1]); //gives you first day of week 1
    $wk1End = array_pop($weeks[1]); // give you the last day of week 1

If you want the start and end dates for each week, here is a way of doing it:

    $ranges = array_map(function($week) {
        return 'start: ' . array_shift($week) 
            . ', end: ' . array_pop($week); },
    $weeks);

This is the output of $ranges for me:

    Array
    (
        [1] => start: 2014-10-01, end: 2014-10-04
        [2] => start: 2014-10-05, end: 2014-10-11
        [3] => start: 2014-10-12, end: 2014-10-18
        [4] => start: 2014-10-19, end: 2014-10-25
        [5] => start: 2014-10-26, end: 2014-10-31
    )

Answer 2

You can easily change the week starting day (set to Monday at the moment):

$fromDate = '2018-05-03';
$toDate = '2018-08-11';
$result = getWeekRanges($fromDate, $toDate);
array_walk_recursive($result, 'applyFormat');
echo '<pre>';
print_r($result);
echo '</pre>';

function getWeekRanges($start, $end) {
    $timeStart = strtotime($start);
    $timeEnd   = strtotime($end);
    $out       = [];
    $milestones[] = $timeStart;
    $timeEndWeek = strtotime('next Monday', $timeStart);
    while ($timeEndWeek < $timeEnd) {
        $milestones[] = $timeEndWeek;
        $timeEndWeek = strtotime('+1 week', $timeEndWeek);
    }
    $milestones[] = $timeEnd;
    $count = count($milestones);
    for ($i = 1; $i < $count; $i++) {
        if( $i == $count - 1) {
            $out[] = [
                'start' => $milestones[$i - 1],
                'end'   => $milestones[$i]
            ];
        }else{
            $out[] = [
                'start' => $milestones[$i - 1],
                'end'   => $milestones[$i] - 1
            ];
        }
    }
    return $out;
}


function applyFormat(&$item) {
    $item = date('Y-m-d', $item);
}